12616956 has 72 divisors (see below), whose sum is σ = 35188608. Its totient is φ = 3780000.

The previous prime is 12616927. The next prime is 12616957. The reversal of 12616956 is 65961621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12616956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12616957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59691 + ... + 59901.

Almost surely, 2^12616956 is an apocalyptic number.

12616956 is the 1899-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12616956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17594304).

12616956 is an abundant number, since it is smaller than the sum of its proper divisors (22571652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12616956 is a wasteful number, since it uses less digits than its factorization.

12616956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 378 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 12616956 is about 3552.0354727958. The cubic root of 12616956 is about 232.8010114386.

The spelling of 12616956 in words is "twelve million, six hundred sixteen thousand, nine hundred fifty-six".